<!--  -->
<template>
  <div class="categorySelect_container">
    <el-form :model="cForm" :inline="true" class="demo-form-inline">
      <el-form-item label="一级分类">
        <el-select
          v-model="cForm.category1Id"
          placeholder="请选择"
          @change="handler1"
        >
          <el-option
            v-for="c1 in list1"
            :key="c1.id"
            :label="c1.name"
            :value="c1.id"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="二级分类">
        <el-select
          v-model="cForm.category2Id"
          placeholder="请选择"
          @change="handler2"
        >
          <el-option
            v-for="c2 in list2"
            :key="c2.id"
            :label="c2.name"
            :value="c2.id"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="三级分类">
        <el-select
          v-model="cForm.category3Id"
          placeholder="请选择"
          @change="handler3"
        >
          <el-option
            v-for="c3 in list3"
            :key="c3.id"
            :label="c3.name"
            :value="c3.id"
          />
        </el-select>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
export default {
  name: "CategorySelect",
  data() {
    return {
      data: [],
      list1: [],
      list2: [],
      list3: [],
      cForm: {
        category1Id: "",
        category2Id: "",
        category3Id: "",
      },
    };
  },
  mounted() {
    this.getCategory1List();
  },
  methods: {
    // 获取一级分类数据的方法
    async getCategory1List() {
      const res = await this.$API.attr.reqCategory1List();
      if (res.code === 200) {
        this.list1 = res.data;
      }
    },
    // 获取二级分类数据
    async handler1() {
      this.list2 = [];
      this.list3 = [];
      this.cForm.category2Id = "";
      this.cForm.category3Id = "";
      const { category1Id } = this.cForm;
      this.$emit("getCategoryId", {categoryId:category1Id,level:1});
      const res = await this.$API.attr.reqCategory2List(category1Id);
      if (res.code === 200) {
        this.list2 = res.data;
      }
    },
    // 获取三级分类数据
    async handler2() {
      this.list3 = [];
      this.cForm.category3Id = "";
      const { category2Id } = this.cForm;
      this.$emit("getCategoryId", {categoryId:category2Id,level:2});
      const res = await this.$API.attr.reqCategory3List(category2Id);
      if (res.code === 200) {
        this.list3 = res.data;
      }
    },
    //获取三级分类瞬狙
    handler3() {
      const { category3Id } = this.cForm;
      this.$emit("getCategoryId", {categoryId:category3Id,level:3});
    },
  },
};
</script>

<style scoped>
</style>
